Human B7-1/CD80 ELISA Kit PicoKine®

B7-1/CD80 ELISA kit for Human

Human B7-1/CD80 ELISA Kit PicoKine™ (96 Tests). Quantitate Human CD80 in cell culture supernatants and serum. Sensitivity: 10pg/ml.

Product Info Summary

SKU: EK0707
Size: 96 wells/kit, with removable strips.
Reactive Species: Human
Application: ELISA
Sample Types: cell culture supernatants and serum.

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Product Name

Human B7-1/CD80 ELISA Kit PicoKine®

View all B7-1/CD80 ELISA kits

SKU/Catalog Number

EK0707

Size

96 wells/kit, with removable strips.

*Question: How many samples can I assay/run in this kit?

Description

Human B7-1/CD80 ELISA Kit PicoKine™ (96 Tests). Quantitate Human CD80 in cell culture supernatants and serum. Sensitivity: 10pg/ml.

Storage & Handling

Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

Cite This Product

Human B7-1/CD80 ELISA Kit PicoKine® (Boster Biological Technology, Pleasanton CA, USA, Catalog # EK0707)

Clonality of Antibodies

See Datasheet for details

Immunogen

Expression system for standard: NS0; Immunogen sequence: V35-N242

Sensitivity

<10 pg/ml

Assay Range

62.5 pg/ml - 4,000 pg/ml

Cross-reactivity

There is no detectable cross-reactivity with other relevant proteins.

Reactive Species

EK0707 is reactive to CD80 in Human samples

Validated Sample Types

cell culture supernatants and serum.

Application Guarantee

EK0707 is guaranteed for ELISA in Human by Boster Guarantee

See how Boster Bio validate our ELISA kits: ELISA Validation Information

Background of B7-1/CD80

The protein CD80 (Cluster of Differentiation 80) is a molecule found on activated B cells and monocytes which provides a costimulatory signal necessary for T cell activation and survival. It is also known as B7-1. The cDNA for B7-1 predicts a type I membrane protein, i.e., one synthesized with a signal peptide that is cleaved upon translocation across the endoplasmic membrane. The protein is predicted to contain 2 extracellular domains structurally similar to those of Ig, a hydrophobic transmembrane region, and a short cytoplasmic domain. The CD80 and CD86 genes encode B7-1 and B7-2, respectively, which are structurally similar members of the immunoglobulin superfamily expressed on a variety of hematopoietic cell types. B7-1 and B7-2 provide a costimulatory signal to T cells by interacting with CD28 and CTLA4.

Kit Components

Catalog Number Description Quantity
EK0707-CAP Anti-Human CD80 Pre-coated 96-well strip microplate 1
EK0707-ST Human CD80 Standard 2 vials, 10 ng/tube
EK0707-DA Human CD80 Biotinylated antibody (100x) 100ul
AR1103 Avidin-Biotin-Peroxidase Complex (100x) 100ul
AR1106-1 Sample Diluent 30ml
AR1106-2 Antibody Diluent 12ml
AR1106-3 Avidin-Biotin-Peroxidase Diluent 12ml
AR1104 Color Developing Reagent (TMB) 10ml
AR1105 Stop Solution 10ml
AR1106-5 Wash Buffer (25x) 20ml
PLA-SEA Adhesive plate sealers 4

*The kit components are not available for individual purchase.

Materials Required But Not Included In Kit

  • Microplate Reader capable of reading absorbance at 450nm.
  • Automated plate washer (optional).
  • Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
  • Multichannel pipettes are recommended for large amount of samples.
  • Deionized or distilled water.
  • 500ml graduated cylinders.
  • Test tubes for dilution.

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Validation Standard Curve O.D. At 450nm

Concentration (pg/ml)062.5125250500100020004000
O.D.0.0080.0520.0970.2360.5080.8971.2202.123

Data Example Images

Recommended Sample Dilution Ratios

According to our internal validation assays using this ELISA kit, to detect B7-1/CD80, Dilution ratio of 1:1, concentration in serum is around 10pg/ml.

Some articles we found to cite concentrations of B7-1/CD80 in samples: 25142334 (Pubmed IDs).

Intra Assay Consistency & Inter Assay Consistency

We measured random samples of Human B7-1/CD80 ELISA Kit PicoKine® within the same batch/lot to ensure the consistency of the kits' performances. ELISA intra assay consistency is measured using wells from the same plate/assay kit. ELISA inter assay consistency is measured using wells from different plates from the same batch production/lot.

Intra-Assay PrecisionInter-Assay Precision
Sample123123
n161616242424
Mean (pg/ml)16244516561634251791
Standard deviation7.2934.7169.557.9834100.29
CV (%)4.5%7.8%4.2%4.9%8%5.6%

Reproducibility

We ensure reproducibility by testing three samples with differing concentrations of B7-1/CD80 in ELISA kits from four different production batches/lots.

LotsLot 1 (pg/ml)Lot 2 (pg/ml)Lot 3 (pg/ml)Lot 4 (pg/ml)Mean (pg/ml)Standard DeviationCV (%)
Sample 116213816413915012.278.1%
Sample 244549551545747828.235.9%
Sample 316561667140215601571106.216.7%
*number of samples for each test n=16.

Gene/Protein Information For CD80 (Source: Uniprot.Org, NCBI)

Uniprot ID

P33681

Gene ID

941

Gene Name

CD80

Full Name

T-lymphocyte activation antigen CD80

Weight

33.048kDa

Alternative Names

Activation B7-1 antigen; B7; B71; B7-1; BB1; CD28LG1; CD28LGB7-1 antigen); CD80 antigen; CD80 molecule; CD80; costimulatory factor CD80; costimulatory molecule variant IgV-CD80; CTLA-4 counter-receptor B7.1; T-lymphocyte activation antigen CD80 CD80 B7, B7-1, B7.1, BB1, CD28LG, CD28LG1, LAB7 CD80 molecule T-lymphocyte activation antigen CD80|B-lymphocyte activation antigen B7|CD80 antigen (CD28 antigen ligand 1, B7-1 antigen)|CTLA-4 counter-receptor B7.1|activation B7-1 antigen|costimulatory factor CD80|costimulatory molecule variant IgV-CD80

*if product is indicated to react with multiple species, protein info is based on the gene entry specified above in "species".

For more info on CD80, check out the CD80 Infographic

CD80 infographic

We have 30,000+ of these available, one for each gene! check them out.

In this infographic you will see the following information for CD80: database IDs, super-family, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact us [email protected]

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6 Customer Q&As for Human B7-1/CD80 ELISA Kit PicoKine®

Question

Q: we need your suggestion regarding the dilution ratio of serum samples for detection of CD80 in Human serum? I am trying to measure a a number of analytes and it requires 100ul of diluted samples for each well. We have limited sample quantitys so we like to dilute as much as possible.

L. Anderson

Verified customer

Asked: 2020-11-13

Answer

A: without having an understanding the physiological or pathological context of your samples we cannot recommend a dilution ratio without performing a pilot test with your samples. Here is how you can perform a pilot study on your own: perform a serial dilution of your samples on the CD80 ELISA kit to make sure you have a linear ascending curve followed by a plateau, which signifies the samples saturating the detection limit of the kit. Then you can pick the dilution ratios from samples in the linear part of the curve as your experimental dilution ratio.
If you are interested in using our ELISA service, you can also send us your sample and we will take care of everything for you. You can check our service details here: bosterbio.com/services/assay-services/ELISA-testing-service
Since you mentioned you have limited samples, our cost effective multiplex ELISA service would fit perfectly for your needs, where we can generate dozens of data points using as little as 25ul sample volume. Information on this service is also in the above link.

Boster Scientific Support

Answered: 2020-11-13

Question

Q: Are Boster Bio recombinant proteins and antibodies sterile?

Verified Customer

Verified customer

Asked: 2020-02-19

Answer

A: although the vials are bottled using aseptic techniques, heat-treated vials, and sterile stock solutions, they are not considered or guaranteed to be sterile. If sterile material is required for an experiment, the material can be filtered through a 0.2 micron filter designed for use with biological fluids.

Boster Scientific Support

Answered: 2020-02-19

Question

Q: if the enzyme conjugated CD80 antibodies are mixed with the substrate, will that change the substrate into the enzymatic reaction product? Or the enzyme function is only activated when the antibody is attached with the CD80 antigen?

Verified Customer

Verified customer

Asked: 2019-06-30

Answer

A: The enzyme is always active. Avoid contaminating the substrate with enzyme prior to the incubation otherwise it compromises the assay with false positive signal.

Boster Scientific Support

Answered: 2019-06-30

Question

Q: is there any online tool I can use to streamline the data analysis for my ELISA results?

Verified Customer

Verified customer

Asked: 2019-04-12

Answer

A: We have a web based ELISA curve fitting (4pl) and data analysis tool. Please give it a try: bosterbio.com/biology-research-tools/ELISA-data-analysis-online. You can also consult our article on ELISA data analysis: bosterbio.com/ELISA-data-analysis-instructions

Boster Scientific Support

Answered: 2019-04-12

Question

Q: which procedure should I follow in order to thaw whole blood sample for CD80 ELISA after freezing?

Verified Customer

Verified customer

Asked: 2018-06-08

Answer

A: we do not recommend freezing and thaw whole blood. erythrocytes are fragile and, if frozen and thawed, will undergo hemolysis rendering the samples useless. To keep your blood samples to test CD80 for a later time, you should let the blood clot in glass tubes and collect the serum to freeze for later use.

Boster Scientific Support

Answered: 2018-06-08

Question

Q: how much samples can be assayed in a Picokine® ELISA Kit?

G. Edwards

Verified customer

Asked: 2016-03-10

Answer

A: The Picokine® ELISA Kits will generally run a 7-point standard curve, non-specific binding wells, and 39 samples in duplicate. this may depends upon the kit used so please refer to each datasheet for details.

Boster Scientific Support

Answered: 2016-03-10

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